Bobbin



(No Model.)

-D. HAMBLETON.

CBOBBIN.

No. 255502'. Patenta& Mar. 28-.1882.

V UNITED STATES PATENT OFFICE.

DAVID HAMBLETON, OF NASHUA, NEW HAMPSHIRH.

BQBBIN.

SPECIFICATION formng part of Letters Patent No. 255502, dated March 28, 1882.

Application filed January 20, 1881.

` erence being had to' the accompanying drawings, making a part of this specication, and to the letters and figures of reference marked thereon. 4

, Figure 1 is a side elevation of a bobbin coni structed in accordance with my invention, one

end ot' the bobbiu being in section. F'g. 2 is an end view of the same. Fig. 3 is a longitudinal section of one end of the barrel; Fig. 4, a detailview, in seetion,of the head; and Fig. 5, a similar View of the bushing.`

Heretofore the class of bobbinsto which my invention most near] y relates were constructed as follows: The barrel was forned at or near each end with an abutting shoulder, against which the heads ot' the hobbin were seated after being passed over the ends ofthe barrel. The heads were then permanently connected to the ends of the barrel by a tapering plug driven into each end thereof, which expanded them into close contact with the interier surface around the central openings in the heads, the abutting shoulders on the barrel preventing the heads from being driven inward, and the expanded ends of 'said bar-rel 'preventing the heads from beconing detached.

The object of the presentinvention is to improve the Construction of the several parts of the bobbin, whereby the heads are more tirmly and securely connected to the ends of the barrel, alsoobtainingabobbin of superior strength and increased durability. These objects Iattain by the construction substantially as shown in the drawings and hereinafter described.

In theaccompanying drawings, A repres'en ts thewooden barrel of the bobbin, to the eds of which are connected the wooden heads B. The ends a of the barrel are turned smaller, which forms annnlar shoulders b, and also (lecreases' the diameter of the cnds sufficiently to enable them to enter the openings in theheads B. The heads B are of the same thickness throughout their diameter, with the exception (No model.)

'that their outer 'edges are beveled, both the inner and outer faces or sides being perfectly flat, so far as described, the form being that of .the ordinary wooden bobbin-heads. The heads B are formed with annular seats c, against which the shoulders b abut when the heads are passed over the reduced ends a From the annular seat c to theouter side or face of the head is a flarin g opening, d, its diameter increasing in a direction toward the .outer side or face of the head, and after the ends a have been inserted in the openings (I, and the shoulders b abutting against the seats c, a bushing,` (l, is driven into each of the hollow endsof the barrel A, which looks the heads and barrel togethersimilar to a dovetail* connection. To successfullyaccomplish this, however,it is I'ot only necessary that the openings d should be flaring in the direction as shown in Fig. 4, but .the bushing C also be constructed with a fiaring head, e, the shankf thereof being of equal diameter throughoutits length. The barrel, heads, and bushing are all constructed of wood, their Contacting faces being covercd with glue before being joined together, as illustrated in Fig. 1.

Heretofore the opening d, extending from the outer face or side of the head to near the center, or entirely through the same, was of equal diameter throughout its length, and, although a tapering bushing was used to expand the reduced ends of the harrel against the interior sides of the opening, it would fail to successfully lock or fasten the heads to the barrel unless some additional means were employed. This, however, is overcome by not only forming a fiaring head on the bushing, but forming the opening in the head also fiaring, so that when the bushing is driven into the hollow end of the barrel itwill wedge the reducedend a between two correspondingly-in-' clined surfaces, thereby perfectly and securely looking the head upon the end of the barrel without the necessity of further means other than gluing the parts together.

The shank f of the bushing G is of such length as to extend some distance into the barrel for strefgthening it at the point of connection with the head where the greatest strain comes. It should be further noticed that the shoulder b enters and seats itself in the een IOO tral opening of the head, between its outer and inner sides 01' faces, and does not, as hei-etofore, simply ahnt against the inner side or face of said head. This also is considered an inportant feature in this class of bobbins, where' the head is held onto the end of the barrel hy a hnshing, as the greatest diameter ot' the harrel, entering the head aconsiderahle distance, and the shoulder!) abntting against the seat c, gives increased strength at that point where there is the greatest strain. The hushing U at its shanit f, has its diameter slightly greater than the diameter of the opening in the barrel, and to faeilitate the end thereof entering the barrel it is heveled at g.

When the fla-ing head eis driven down flush with the outt-r surface or side of the head the fibers of the wood are compressed, as are also the fibers ot' the shank and redueed end of the harrel, so as to render them eompaet and tight with the addition ot' the glue, giving the same st'ength as it' of' one solid pieee of Wood.

It should be observed that the rednced end a, of the harrel A is a eontinuons band or ring of wood, and the particular Construction of the several parts of the bohbin does not render it necessary to form Slots in the redueed end around its circunferenee and the head and hushing with webs to make a permanent fastening of the parts together, as my invention entirely removes the neeessity ot' such constretion.

With these dift'erenees and advantages it will he readily seen that abobhin constructed in aeeordanee with myinvention not only possesses great strength and durahility, as well as lightness and uniform weight, but can be manutactnred at a greatlyreduced cost over the bohhins having metal heads and bushings.

Having now flly described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a bobhin, the barrel A, having rcduced ends a and annular shoulders b, in eomhination with the heads B, formed with annular seats c and fiaring openings (I, the greater diameter ot' the harrel entering the head, so that the shoulders will ahut against the seat hetween the sides of the head, and the bushing O, driven into the ends of the barrel to expand and force the ends thereof against the sides of the flaring openings, sbstantially as and for the purpose set t'orth.

2. The harrelA, having redueed ends a and shonlders b, in conbination with the heads B, formed with seats c and flaring openings (I, and the hushings ,having flaring head e, shankf, and bevel g, suhstantially as and for the purpose specified.

3. The eomhination, with the harrel A,having redneed ends a and shoulde's b, and the bushings G, formed with flaring heads e, of the heads B, formed with annnlar seats cand fiat'- ing openings d, 'said openings inereasing in diameter from the seats to the onter face or side of the head, suhstantially as shown, and for the purpose set forth.

DAVI D HA M BLETON.

Witnesses:

DANIEL G. WATERMAN, J. B. PARKER. 

